CN108335767A - Spent fuel dry-type storage horizontal type device - Google Patents
Spent fuel dry-type storage horizontal type device Download PDFInfo
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- CN108335767A CN108335767A CN201810094575.2A CN201810094575A CN108335767A CN 108335767 A CN108335767 A CN 108335767A CN 201810094575 A CN201810094575 A CN 201810094575A CN 108335767 A CN108335767 A CN 108335767A
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- cylinder
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- spent fuel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/06—Magazines for holding fuel elements or control elements
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/04—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from fissile or breeder material
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/04—Concretes; Other hydraulic hardening materials
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of spent fuel dry-type storage horizontal type devices comprising：Pedestal, bottom are provided with air inlet；Cylinder ontology, bottom is fixed on the base, the casing cylinder of inner casing cylinder and steel plate structure including steel plate structure, concrete is filled between inner casing cylinder and casing cylinder, form " steel plate concrete steel plate " sandwich of layers structure, the bottom of cylinder ontology is provided with the air inlet air flow channel being connected to the air inlet, and air outlet air flow channel is provided at the top of cylinder ontology；And footstock, it is fixed on the top of cylinder ontology, air outlet is provided on footstock, air outlet is connected to the air outlet air flow channel of cylinder bodies top.Compared with the existing technology, spent fuel dry-type storage of the present invention builds easy, simple in structure, safety durable, ventilation with horizontal type device and radiation screening effect is good, operation operation facility, convenient for wide popularization and application.
Description
Technical field
The invention belongs to spent nuclear fuel in nuclear power plant dry storage fields, it is more particularly related to which a kind of spentnuclear fuel is dry
Formula storage horizontal type device.
Background technology
Spent nuclear fuel in nuclear power plant dry storage uses horizontal type device as the fuel of storage and protection sealing loading irradiated fuel assembly
Basin is mainly used for providing protection and the radiation shield of car for spent fuel storage tank structure, and providing air convection channel makes car for spent fuel storage tank
It is adequately cooled.Current spentnuclear fuel Dry storage widely used in the world is the cuboid of inner hollow with horizontal type device
Reinforced concrete structure can be divided into rectangular footstock, concrete coaming plate, internal supporting guide and dismountable several portions of door opening cover board
Point.Rectangular footstock, concrete coaming plate are reinforced concrete structure, for providing to car for spent fuel storage tank structure and shielding protection.It is weary
Fuel tank is freely seated on internal both sides supporting guide, without any constraint.It is equipped at horizontal concrete module bottom, top
Simple air inlet, exhaust passage, are persistently discharged irradiated fuel assembly decay heat.
But there are certain defects for this structure：
1) horizontal reservoir module takes reinforced concrete structure, construction difficulty big；
2) the exposed easy cracking of concrete and corroded, service life and durability are insufficient；
3) ventilation heat exchange scarce capacity causes localized high temperature regions material safety margin minimum；
4) module ventilation mouth radiation shielding capability is poor, influences to run operating personnel's radiation shield safety；
5) car for spent fuel storage tank is in without free stored condition is constrained, and quake-resistant safety performance is insufficient.
In view of this, being imitated it is necessory to provide a kind of easy construction, simple in structure, safety durable, ventilation and radiation shield
Fruit is good and operation operates convenient spent fuel dry-type storage horizontal type device.
Invention content
It is an object of the invention to：It is easy, simple in structure, safe resistance to overcome the deficiencies of the prior art and provide a kind of construction
With, ventilation and radiation screening effect be good and the convenient spent fuel dry-type storage horizontal type device of operation operation.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of spent fuel dry-type storage horizontal type devices, including：
Pedestal, bottom are provided with air inlet；
There is the space for accommodating car for spent fuel storage tank, bottom to be fixed on the base, include the inner casing of steel plate structure for cylinder ontology
The casing cylinder of cylinder and steel plate structure is filled with concrete between inner casing cylinder and casing cylinder, form " steel plate-concrete-
Steel plate " sandwich of layers structure, the bottom of cylinder ontology are provided with the air inlet air flow channel being connected to the air inlet, cylinder ontology
Top be provided with air outlet air flow channel；And
Footstock is fixed on the top of cylinder ontology, and air outlet is provided on footstock, and air outlet goes out with cylinder bodies top
Air port air flow channel connection.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, it is arranged on the inner cavity of the inner casing cylinder
There are multiple support ring-plane structures.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the support ring-plane structure include with it is interior
Annular ring flat-plate that thimble body is fixedly connected, the guiding gusset being fixedly connected with annular ring flat-plate and support supporting plate, in annular ring flat-plate
Portion is the circular hole for accommodating spentnuclear fuel storage tank, and the vent flow path of mutually independent clear is constituted between each annular ring flat-plate.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the gusset that is oriented to is the three of arc-shaped
Angular or corner angle are the structure of rounded corner, and the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 25 °~40 °, institute
It is arc-shaped to state support supporting plate, and the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 60 °~120 °, it is preferable that
Described to be oriented to the triangular structure that gusset is arc-shaped, the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 30 °,
The support supporting plate is arc-shaped, and the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 60 °.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the cylinder ontology is regular polygon knot
Structure, casing cylinder and inner casing cylinder are the regular polygon structure consistent with cylinder ontology, between inner casing cylinder and casing cylinder
It is welded to connect by connecting floor, connection floor is located at the polygon corner angle position of casing cylinder and inner casing cylinder, it is preferable that institute
State casing cylinder and inner casing cylinder be rule octagon structure, connection floor is located at the eight of casing cylinder and inner casing cylinder
Side shape corner angle position.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the casing cylinder and the interior thimble
The lower part of body respectively at least offers an air inlet hole, constitutes the air inlet air flow channel of entire cylinder ontology, the outer shell barrel
The top of body and the inner casing cylinder respectively at least offers an exhaust vent, constitutes the air outlet air stream of entire cylinder ontology
Road, it is preferable that the exhaust vent front end and the air inlet hole front end and cylinder ontology leading edge maintain certain distance, it is described go out
Air holes rear end and the air inlet hole rear end are directly penetrated through to cylinder ontology back edge.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the pedestal include substrate and be located at base
The end at plate both ends, the substrate include convex substrate and are distributed in the trapezoidal substrate of convex substrate both sides, convex substrate and ladder
Shape substrate is fixedly connected with the end at both ends respectively, and the double step in mirror symmetry is provided between convex substrate and trapezoidal substrate
Separate unit rank L-type labyrinth type air intake mouth is provided between L-type labyrinth type air intake mouth or the convex substrate and trapezoidal substrate.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the footstock include air outlet substrate and
The end plate at both ends, the air outlet substrate include convex upper substrate and are symmetrically distributed in the L-type lower substrate of convex upper substrate both sides,
L-type lower substrate is located at the lower part of convex upper substrate, and convex upper substrate and L-type lower substrate are fixedly connected with the end at both ends respectively,
Double step L-type labyrinth type air outlet or the convex upper substrate and both sides L-type lower substrate in mirror symmetry are formed respectively with two
The end at end is fixedly connected, and forms separate unit rank L-type labyrinth type air outlet.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the cylinder ontology further includes that setting exists
The door opening cover board and bottom cover of inner casing cylinder and casing cylinder both ends, the door opening cover board includes left side simple gate and right side simple gate, is adopted
It makes even and draws the opening and closing of double swing doors design realization door opening cover board.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the door opening cover board and inner casing cylinder and
Upper cover is provided between casing cylinder, the door opening cover board, upper cover, bottom cover are to be matched with inner casing cylinder and casing cylinder
Regular polygon structure, preferred octagon structure.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the footstock, pedestal, door opening cover board and
The structure of bottom cover is one kind in " steel plate-concrete-steel plate " sandwich of layers structure, whole concrete structure or reinforced concrete structure
Structure or composite structure, it is preferable that the footstock, pedestal, door opening cover board and bottom cover are all that " steel plate-concrete-steel plate " is sandwich
Layer structure.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the left side simple gate and right side simple gate point
It is not flexibly connected with upper cover by door-hinge.
As a kind of improvement of spent fuel dry-type storage horizontal type device of the present invention, the left side simple gate includes left side outer layer
Shielding cover board and left side internal layer shielding cover board, the left side internal layer shielding cover board are located at the protrusion setting of extension on one side of vertical direction
In the outside of left side outer shield cover board, the right side simple gate includes right side outer shield cover board and right side internal layer shielding cover board,
The right side internal layer shielding cover board it is each when right side outer shield cover board is each between be both provided with spacing, left side outer shield lid
The closing line of plate and right side outer shield cover board is located at door opening cover board center, left side internal layer shielding cover board and right side internal layer screening cover
The closing line of plate forms maze-type structure with the closing line mutual dislocation of left side outer shield cover board and right side outer shield cover board.
Compared with the existing technology, spent fuel dry-type storage of the present invention has following advantageous effects with horizontal type device：
1) construction difficulty is reduced, structural strength and concrete material durability are improved
Octagon structure process for machining and manufacturing is simple, while taking " steel plate-concrete-steel plate " interlayer structure, can be with
The problems such as effectively avoiding reinforcing bar binding, support template and concreting from vibrating, reduces construction difficulty；In addition, steel plate knot
Structure intensity is high, can undertake the accident conditions structure security function such as earthquake, flood, cyclone and missile, explosion, and concrete is made
It is isolated from the outside for shielding material, the chemical attacks such as chloride, sulfate resistance is avoided to influence, endurance quality is obviously improved；
2) it eliminates vent flow path and hinders entity structure, improve ventilation heat exchange ability and safety margin
Ring-plane structure is supported by setting so that cylinder body interior forms independent without hindrance vent flow path, eliminates logical
Distinguished and admirable road hinders entity structure, improves ventilation heat exchange ability and material thermal technology's safety margin；
3) it realizes the comprehensive constraint of fuel tank, ensures accident conditions quake-resistant safety performance
The circular hole of each independent support ring-plane structure is realized to active constraint within the scope of 360 ° of car for spent fuel storage tank, and earthquake is avoided
The basin plastic deformation that accident conditions fuel tank strenuous exercise brings is even damaged, effective guarantee car for spent fuel storage tank accident conditions
Anti-seismic structure safety and sealing safety；
4) ventilation opening radiation shield dosage is significantly reduced, ensures operation operating personnel radiation shield safety
Air inlet and outlet takes continuous " L " the type labyrinth passage of double step, realize γ that car for spent fuel storage tank is generated with
Neutron ray it is continuous block, attenuation, making spentnuclear fuel transhipment storage, closely operation operating personnel's dose of radiation is maintained at
Lower level.
Description of the drawings
With reference to the accompanying drawings and detailed description, spent fuel dry-type storage of the present invention is carried out specifically with horizontal type device
It is bright, wherein：
Fig. 1 is the structural schematic diagram of existing spent fuel dry-type storage device.
Fig. 2 is the structural schematic diagram of spent fuel dry-type storage horizontal type device of the present invention.
Fig. 3 is the phantom of spent fuel dry-type storage horizontal type device of the present invention.
Fig. 4 is 1/2 sectional view of spent fuel dry-type storage horizontal type device of the present invention.
Fig. 5 is the facade view of spent fuel dry-type storage horizontal type device of the present invention.
Fig. 6 is the side view of spent fuel dry-type storage horizontal type device of the present invention.
Fig. 7 is the structural schematic diagram of spent fuel dry-type storage horizontal type device pedestal of the present invention.
Fig. 8 is the sectional view of spent fuel dry-type storage horizontal type device pedestal of the present invention.
Fig. 9 is the decomposition diagram of spent fuel dry-type storage horizontal type device pedestal of the present invention.
Figure 10 is the structural schematic diagram of spent fuel dry-type storage horizontal type device cylinder ontology of the present invention.
Figure 11 is the structural schematic diagram of the upper cover of spent fuel dry-type storage horizontal type device of the present invention.
Figure 12 is the structural schematic diagram of the bottom cover of spent fuel dry-type storage horizontal type device of the present invention.
Figure 13 is the connection structure signal of spent fuel dry-type storage horizontal type device inner casing cylinder of the present invention and casing cylinder
Figure.
Figure 14 is the structural schematic diagram of spent fuel dry-type storage horizontal type device casing cylinder of the present invention.
Figure 15 is the structural schematic diagram of spent fuel dry-type storage horizontal type device inner casing cylinder of the present invention.
Figure 16 is the structural schematic diagram that spent fuel dry-type storage horizontal type device of the present invention connects floor.
Figure 17 is the structural schematic diagram that spent fuel dry-type storage horizontal type device hole type of the present invention supports ring-plane structure.
Figure 18 is the side view that spent fuel dry-type storage horizontal type device hole type of the present invention supports ring-plane structure.
Figure 19 is the sectional view that spent fuel dry-type storage horizontal type device hole type of the present invention supports ring-plane structure.
Figure 20 is the structural schematic diagram of spent fuel dry-type storage horizontal type device door opening cover board of the present invention.
Figure 21 is the structural schematic diagram of simple gate on the left of spent fuel dry-type storage horizontal type device door opening cover board of the present invention.
Figure 22 is the structural schematic diagram of simple gate on the right side of spent fuel dry-type storage horizontal type device door opening cover board of the present invention.
Figure 23 is the structural schematic diagram of spent fuel dry-type storage horizontal type device bottom cover of the present invention.
Figure 24 is the decomposition diagram of spent fuel dry-type storage horizontal type device bottom cover of the present invention.
Reference numeral：
10- pedestals；100- air inlets；102- substrates；The ends 104-；1020- convex substrates；The trapezoidal substrates of 1022-；12-
Cylinder ontology；120- inner casing cylinders；1200- inner casing exhaust vents；1202- inner casing air inlet holes；121- connection floors；122- outer shell barrels
Body；1220- shell exhaust vents；1222- shell air inlet holes；124- air inlet air flow channels；126- air outlet air flow channels；127-
Door opening cover board；Simple gate on the left of 1270-；Outer shield cover board on the left of 12700-；Internal layer shielding cover board on the left of 12702-；1270- is left
Side simple gate；Outer shield cover board on the left of 12700-；Internal layer shielding cover board on the left of 12702-；128- bottom covers；129- upper covers；130-
Door-hinge；15- hole types support ring-plane structure；150- annular ring flat-plates；152- is oriented to gusset；154- supports supporting plate；18- footstocks；
180- air outlets；182- air outlet substrates；1820- convex upper substrates；1824-L type lower substrates；184- end plates.
Specific implementation mode
In order to make goal of the invention, technical solution and its technique effect of the present invention be more clear, below in conjunction with attached drawing and tool
Body embodiment, the present invention will be described in further detail.It should be understood that specific embodiment party described in this specification
Formula is not intended to limit the present invention just for the sake of explaining the present invention.
It please refers to shown in Fig. 2 to Figure 24, spent fuel dry-type storage horizontal type device of the present invention, including：
Pedestal 10, bottom are provided with air inlet 100；
Cylinder ontology 12, bottom are fixed on pedestal 10, and middle part is to accommodate the annular space of car for spent fuel storage tank, including steel plate
The inner casing cylinder 120 of structure and the casing cylinder 122 of steel plate structure, filled with mixed between inner casing cylinder 120 and casing cylinder 122
Solidifying soil (not shown), forms " steel plate-concrete-steel plate " sandwich of layers structure, the bottom of cylinder ontology 12 is provided with and enters the wind
The air inlet air flow channels 124 of 100 connection of mouth, the top of cylinder ontology 12 is provided with air outlet air flow channel 126；And
Footstock 18 is fixed on the top of cylinder ontology 12, and air outlet 180, air outlet 180 and cylinder are provided on footstock 18
The air outlet air flow channel 126 at 12 top of ontology is connected to.
It please refers to shown in Fig. 7 to Fig. 9, pedestal 10 is to have reeded inverted trapezoidal structure, including substrate 102 and be located at substrate
The end 104 at 102 both ends, substrate 102 and end 104 are independent Prefabricated block, and substrate 102 includes 1020 He of convex substrate
Be symmetrically distributed in the trapezoidal substrate 1022 of 1020 both sides of convex substrate, convex substrate 1020, trapezoidal substrate 1022 and both ends end
First 104 be that outer layer coats for steel plate, and internal layer fills " steel plate-concrete-steel plate " sandwich of layers structure of mass concrete, convex
Type substrate 1020 and trapezoidal substrate 1022 weld the integrated overall structure of formation with the end at both ends 104 respectively.In other implementations
In mode, the whole concrete structure or reinforced concrete structure of pedestal 10 or inverted trapezoidal can pass through integrated molding.
In the provisioning process, the double step L in mirror symmetry is provided between convex substrate 1020 and trapezoidal substrate 1022
Separate unit rank L-type fan also can be only arranged in type labyrinth type air intake mouth wherein between a trapezoidal substrate 1022 and convex substrate 1020
Palace formula air inlet, another trapezoidal substrate 1022 are directly connected to convex substrate 1020.In design, convex substrate 1020 is put
It sets in the horizontal plane, each reserved certain sky in both sides of the trapezoidal substrate 1022 for making both sides and horizontal plane and convex substrate 1020
Between, the top on 1022 shorter one side of trapezoidal substrate is in the same horizontal position with the top of convex substrate 1020, finally at both ends
End 104 is set and forms the inverted trapezoidal pedestal 10 with air inlet 100.The top of end 104 is provided with the recessed grain of inverted trapezoidal, with cylinder
12 lower shape of body ontology mutually agrees with.
It please refers to shown in Fig. 2, Fig. 5, Figure 10 to Figure 16, cylinder ontology 12 is directly located at the inverted trapezoidal groove of pedestal 10
It is interior, and be fixedly connected with pedestal 10 by bolt.Cylinder ontology 12 is regular polygon structure, specially regular hexagon, positive eight side
The regular polygon structure of the rule such as shape, regualr decagon, dodecagon, positive ten hexagon, including inner casing cylinder 120, outer shell barrel
Body 122 and it is arranged in interior thimble body 120, the door opening cover board 127 at 122 both ends of casing cylinder and bottom cover 128,120 He of inner casing cylinder
Casing cylinder 122 is thin-walled steel plate structure, and mass concrete, door opening are filled between inner casing cylinder 120 and casing cylinder 122
Cover board 127 and bottom cover 128 are that outer layer coats for steel plate, and internal layer is filled with " steel plate-concrete-steel plate " of mass concrete
Sandwich of layers structure.To enhance the overall construction intensity of cylinder ontology 12, welded between casing cylinder 122 and inner casing cylinder 120
It is also thin-walled steel plate to have connection floor 121, connection floor 121.
As a kind of currently preferred embodiment, door opening cover board 127 and inner casing cylinder 120 and casing cylinder 122
Between be provided with upper cover 129, inner casing cylinder 120, casing cylinder 122, door opening cover board 127, bottom cover 128 and upper cover 129 are equal
For the regular polygon structure of rule, such as regular hexagon, octagon, regualr decagon, dodecagon, positive ten hexagon, connect
Rib plate 121 is welded on the polygon corner angle position of casing cylinder 122 and inner casing cylinder 120.In the shown embodiment, inner casing
Cylinder 120, casing cylinder 122, door opening cover board 127, bottom cover 128 and upper cover 129 are the octagon structure of rule, finally
The cylinder ontology 12 of formation is octagon structure, and connection floor 121 is being welded on casing cylinder 122 and inner casing cylinder 120 just
Octagon corner angle position.Bottom cover 128 is welded to connect with inner casing cylinder 120 and casing cylinder 122, and upper cover 129 is thin slice steel plate,
Structure is matched with inner casing cylinder 120 and casing cylinder 122, and middle part is round hole structure, the top edge of upper cover 129 with it is outer
Thimble body 122 is welded to connect, and lower edge and the inner casing cylinder 120 of upper cover 129 are welded to connect.
It please refers to Fig.1 shown in 6, connection floor 121 is thin-walled small size steel plate, is respectively welded at inner casing cylinder 120 and outer
The both ends of thimble body 122 are respectively welded with 8 connection floors 121 in front-end and back-end, and the structure for enhancing cylinder ontology 12 is strong
Degree.
3 are please referred to Fig.1 to shown in Figure 15, casing cylinder 122 is thin by the structure and the identical rectangle of shape of eight pieces of standards
Wall steel plate is by being welded to form, since entire shell takes Horizontal type stored condition, to meet gravity-flow ventilation needs, in shell
The top steel plate of cylinder 122 offers at least one shell exhaust vent 1220.As a kind of currently preferred embodiment,
The identical shell exhaust vent 1220 of two strips is offered in the top steel plate of casing cylinder 122, shell exhaust vent 1220 is
Rectangle, 1220 front end of shell exhaust vent keep certain distance with 122 leading edge of casing cylinder, and rear end is directly penetrated through to outer shell barrel
The back edge of body 122.Meanwhile on the lower end steel plate opposite with 122 the top steel plate front of casing cylinder, two bar shapeds are opened up
The identical shell air inlet hole 1222 of shape, shape and structure feature are identical as shell exhaust vent 1220.Shell exhaust vent 1220 and outer
The quantity of shell air inlet hole 1222 can also be set according to actual conditions.
Inner casing cylinder 120 is identical as 122 set-up mode of casing cylinder, also by the structure and the identical length of shape of eight pieces of standards
For rectangular thin-walled steel plate by being welded to form, the top steel plate of inner casing cylinder 120 has opened up the identical inner casing outlet air of two strips
Hole 1200, the shape and structure and shell exhaust vent 1220 of inner casing exhaust vent 1200 are identical, and are constituted with shell exhaust vent 1220
The air outlet air flow channel 126 of entire cylinder ontology 12.Meanwhile opposite with the bottom steel plate front of inner casing cylinder 120
Lower end steel plate on, offer the identical inner casing air inlet hole 1202 of two strips, the shape and structure of inner casing air inlet hole 1202 and
Shell air inlet hole 1222 is identical, and the air inlet air flow channel 124 of entire cylinder ontology 12 is constituted with shell air inlet hole 1222.
When cylinder ontology 12 is fixed on pedestal 10, air inlet air flow channel 124 is connected to the air inlet 100 on pedestal 10.Inner casing
The quantity of exhaust vent 1200 and inner casing air inlet hole 1202 can also be set according to actual conditions.
The manufacturing process of cylinder ontology 12 is：
1. completing concreting and the welding fabrication of bottom cover 128；
2. completing the prefabricated and welding fabrication of inner casing cylinder 120 and casing cylinder 122；
3. by inner casing cylinder 120 and casing cylinder 122 and 128 welding fabrication of bottom cover；
4. the sandwich of layers of inside thimble body 120 and casing cylinder 122 fills plain concrete；
5. upper cover 129 and inner casing cylinder 120 and 122 welded seal of casing cylinder are shaped.
It please refers to Fig.1 shown in 9, overall door opening cover board 127 is in octagon, including left side simple gate 1270 and right side simple gate
1272, take the design of horizontal drawing double swing doors to realize the opening and closing of door opening cover board 127, left side simple gate 1270 and right side simple gate
1272 be outer layer plate cladding, and internal layer fills " steel plate-concrete-steel plate " sandwich of layers structure of mass concrete, left side
By the way that the connection of door-hinge 130 on 129 both sides of upper cover is arranged between simple gate 1270 and right side simple gate 1272 and upper cover 129.
It please refers to shown in Fig. 3, Fig. 4, Figure 17 to Figure 19, spentnuclear fuel is store under the accident conditions such as flood, earthquake in order to prevent
Tank leads to structural damage since vibration occurs for horizontal and vertical direction, avoids letting out since basin ruptures generation radioactive substance
Leakage, is provided with multiple support ring-plane structures on the inner cavity of interior thimble body 120, and support ring-plane structure includes hole type support ring flat-plate
Structure 15 and/or semicircle support ring-plane structure, preferably hole type supports ring-plane structure 15, in the shown embodiment, just
4 hole type support ring-plane structures 15 are provided on the inner cavity of octagon inner casing cylinder 120, hole type supports ring-plane structure 15 to wrap
Include the annular ring flat-plate 150 being fixedly connected with inner casing cylinder 120, the guiding gusset 152 being fixedly connected with annular ring flat-plate 150 and support
Supporting plate 154, annular ring flat-plate 150 are thin-walled steel plate, and exterior contour is octagon structure, and each side connects with the welding of inner casing cylinder 120
It connecing, middle part is provided with the circular hole (non-label in figure) for accommodating spentnuclear fuel storage tank, and it is steel to be oriented to gusset 152 and support supporting plate 154,
Being integrally formed structure is welded to connect with annular ring flat-plate 150 respectively, mutually independent no barrier is constituted between each annular ring flat-plate 150
Hinder the vent flow path of object, can utmostly reduce ventilation flow resistance, improves heat exchange efficiency, and can ensure weary under accident conditions
The structure safety of fuel tank.Support supporting plate 154 is arc-shaped structure, is substantially flush with the inner circle anchor ring of annular ring flat-plate 150, is propped up
Angle between 154 both ends of bracketing plate and circular hole axle center is 60 °~120 °, and effect is best when angle is 60 °, passes through 4 annulars
Ring flat-plate 150 and mating 154 collective effect of support supporting plate uniformly carry the weight of car for spent fuel storage tank.In the shown embodiment, it leads
The structure that gusset 152 be arc-shaped triangle or corner angle are rounded corner is welded on annular ring flat-plate 150 and enters towards car for spent fuel storage tank
The side of mouth, the angle being oriented between 152 both ends of gusset and circular hole axle center is 25 °~40 °, preferably 30 °, is separately positioned on annular
Positive 4 positions up and down of 150 circular hole of ring flat-plate, angle is 90 ° between each position, and car for spent fuel storage tank is prevented to be pushed into circular hole
When, it prevents from causing car for spent fuel storage tank to generate collision with ring flat-plate 150 in all directions due to positioning operation deviation, while avoiding damaging
The structure of car for spent fuel storage tank and cylinder ontology 12.
When operating operation, using the hydraulic cylinder configured on transfer trailer, car for spent fuel storage tank is pushed into hole type branch one by one
The circular hole of pushing out ring harden structure 15 is uniformly dispersed by the support supporting plate 154 of each circular hole bottom and carries entire car for spent fuel storage tank
Weight, since circular hole may be implemented to 360 ° of car for spent fuel storage tank constraints, each car for spent fuel storage tank hole type support ring is hardened
Structure 15 is mutual indepedent each other so that non-interference without hindrance vent flow path is formd inside cylinder local 12, it can be most
Big degree reduces ventilation flow resistance, improves heat exchange efficiency, and can ensure the structure safety of car for spent fuel storage tank under accident conditions.
In other embodiments, the quantity of hole type support ring-plane structure 15 does not limit, and is oriented to gusset 152, support
The shape of supporting plate 154 and the angle between circular hole axle center also do not limit, and can be selected according to actual needs.Hole type
Support ring-plane structure 15 can also be used semicircle support ring-plane structure and substitute, when supporting ring-plane structure for semicircle, annular ring
Plate is at semi-round annular plate, and guiding gusset is identical with support supporting plate set-up mode, in addition to that cannot constitute phase between semi-round annular plate
The vent flow path of mutual independent clear, other effects and set-up mode and hole type support ring-plane structure 15 are almost the same.
Hole type support ring-plane structure 15 and semicircle support ring-plane structure can be also set simultaneously.
It please refers to shown in Figure 21 and Figure 22, left side simple gate 1270 includes left side outer shield cover board 12700 and left side internal layer
Shielding cover board 12702, left side internal layer shielding cover board 12702 are located at one side of vertical direction (i.e. close to the vertical side of door opening cover board 127
To one side of central axes) extend protrusion and is arranged in the outside of left side outer shield cover board 12700, right side simple gate 1272 includes right side
Outer shield cover board 12720 and right side internal layer shielding cover board 12722,12722 each side of right side internal layer shielding cover board and right side outer layer
Shielding cover board 12720 is each to be both provided with spacing (size both less than right side when i.e. right side internal layer shielding cover board 12722 is each between
Outer shield cover board 12720).Left side outer shield cover board 12700 is identical with right side 12720 planforms of outer shield cover board,
Left side internal layer shielding cover board 12702 is similar with right side 12722 structures of internal layer shielding cover board, 12702 phase of left side internal layer shielding cover board
To longer, right side internal layer shielding cover board 12722 is relatively short, left side outer shield cover board 12700 and right side outer shield cover board
It is central (i.e. the central axes of 127 vertical direction of door opening cover board) that 12720 closing line is located at door opening cover board 127.Left side internal layer shielding
Cover board 12702 and right side internal layer shielding cover board 12722 just form an octagon structure, left side internal layer screening cover after engaging
The closing line of plate 12702 and right side internal layer shielding cover board 12722 and left side outer shield cover board 12700 and right side outer shield lid
The closing line mutual dislocation of plate 12720 forms maze-type structure.
When carrying out irradiated fuel store operation, 1272 to 90 ° of left side simple gate 1270 and right side simple gate are opened manually first, so
Transfer container and horizontal concrete module are positioned by transfer trailer afterwards, after position alignment, by transfer container bottom
Cover board is opened, will be inside car for spent fuel storage tank push in cylinder ontology 12 by hydraulic cylinder by the car for spent fuel storage tank inside transfer container.
After being opened due to transfer container bottom cover plate, car for spent fuel storage tank is directly contacted with external environment, and dose of radiation is higher, therefore door opening
Left side simple gate 1270 and right side simple gate 1272 can play radiation shield protective effect, spentnuclear fuel group when effectively reducing alignment function
The γ and neutron ray that part generates irradiate operations staff's dose of radiation.
It please refers to shown in Fig. 5, Figure 23 and Figure 24, footstock 18 includes air outlet substrate 182 and the cube structure at both ends
End plate 184, air outlet substrate 182 include the L-type lower substrate 1824 of convex upper substrate 1820 and both sides, and L-type lower substrate 1824 is left
Right both sides are symmetrical, are located at the lower part of convex upper substrate 1820, and there are certain gaps between convex upper substrate 1820.
In the shown embodiment, convex upper substrate 1820 is double step convex upper substrate or separate unit rank convex upper substrate, base on convex
The L-type lower substrate 1824 and end plate 184 of plate 1820 and both sides are that outer layer coats for steel plate, and internal layer fills mass concrete
" steel plate-concrete-steel plate " sandwich of layers structure, and by integrally welded structure, when convex upper substrate 1820 is double step
When convex upper substrate, the double step L-type labyrinth type air outlet 180 in mirror symmetry is ultimately formed, the base on for separate unit rank convex
When plate, separate unit rank L-type labyrinth type air outlet is formed.Footstock 18 is directly located at the top of cylinder ontology 12, and by bolt with
Cylinder ontology 12 is fixedly connected, and after connecting between the two, the air outlet 180 and the air outlet at 12 top of cylinder ontology of footstock 18 are empty
Flow channel 126 is connected to.
External natural air enters from 10 air inlet 100 of pedestal first, enters cylinder sheet then along double L-shaped labyrinth channel
12 inner cavity of body, then by supporting the octagon vent flow path between ring-plane structure 15 to enter the air outlet 180 of footstock 18, pass through sky
Gas passive natural circulation persistently exports irradiated fuel assembly decay heat.By taking dual stage to air inlet 100, air outlet 180
Continuous " L " type labyrinth type air flow channel design of rank, to taking independent without hindrance vent flow path to design inside cylinder ontology 12, strong
Dose level of radiation at ventilation opening is also reduced as far as possible while changing ventilation heat exchange ability.
It should be noted that, although spent fuel dry-type storage of the present invention footstock 18 in horizontal type device embodiment, pedestal 10,
Door opening cover board 127, bottom cover 128 structure be all outer layer be steel plate cladding, internal layer fill mass concrete " steel plate-coagulation
Soil-steel plate " sandwich of layers structure, but in other embodiments, footstock 18, pedestal 10, door opening cover board 127, bottom cover 128 can also
For whole concrete structure or reinforced concrete structure, or part is whole concrete structure, is partly reinforced concrete structure, can
By being integrally formed, can also be bolted to connection.
It should be further noted that although embodiment is only to positive eight in spent fuel dry-type storage horizontal type device of the present invention
Side shape structure is described, but in the other embodiment of the present invention, cylinder ontology 12, inner casing cylinder 120, casing cylinder
122, door opening cover board 127, bottom cover 128, upper cover 129 and hole type support ring-plane structure 15 or regular hexagon, positive odd plots of land that can be cultivated
Other regular polygon structures such as shape, dodecagon, positive ten hexagon, the inverted trapezoidal groove of pedestal 10 and footstock 18 respectively with just
Polygonized structure mapping is arranged.Meanwhile inner casing cylinder 120, casing cylinder 122, door opening cover board 127, bottom cover 128 and upper cover
129 are alternatively circular configuration, and correspondingly, it is circular configuration that hole type, which supports ring-plane structure 15 also,.
Compared with the existing technology, spent fuel dry-type storage of the present invention has following advantageous effects with horizontal type device：
1) construction difficulty is reduced, structural strength and concrete material durability are improved
Octagon structure process for machining and manufacturing is simple, while taking " steel plate-concrete-steel plate " interlayer structure, can be with
The problems such as effectively avoiding reinforcing bar binding, support template and concreting from vibrating, reduces construction difficulty；In addition, steel plate knot
Structure intensity is high, can undertake the accident conditions structure security function such as earthquake, flood, cyclone and missile, explosion, and concrete is made
It is isolated from the outside for shielding material, the chemical attacks such as chloride, sulfate resistance is avoided to influence, endurance quality is obviously improved；
2) it eliminates vent flow path and hinders entity structure, improve ventilation heat exchange ability and safety margin
Ring-plane structure is supported by setting so that cylinder body interior forms independent without hindrance vent flow path, eliminates logical
Distinguished and admirable road hinders entity structure, improves ventilation heat exchange ability and material thermal technology's safety margin；
3) it realizes the comprehensive constraint of fuel tank, ensures accident conditions quake-resistant safety performance
The circular hole of each independent support ring-plane structure is realized to active constraint within the scope of 360 ° of car for spent fuel storage tank, and earthquake is avoided
The basin plastic deformation that accident conditions fuel tank strenuous exercise brings is even damaged, effective guarantee car for spent fuel storage tank accident conditions
Anti-seismic structure safety and sealing safety；
4) ventilation opening radiation shield dosage is significantly reduced, ensures operation operating personnel radiation shield safety
Air inlet and outlet takes continuous " L " the type labyrinth passage of double step, realize γ that car for spent fuel storage tank is generated with
Neutron ray it is continuous block, attenuation, making spentnuclear fuel transhipment storage, closely operation operating personnel's dose of radiation is maintained at
Lower level.
According to above-mentioned principle, the present invention can also carry out change and modification appropriate to the above embodiment.Therefore, this hair
It is bright to be not limited to specific implementation mode disclosed and described above, some modifications and changes of the present invention should also be as to fall into this
In the scope of the claims of invention.In addition, although having used some specific terms, these terms in this specification
Merely for convenience of description, it does not limit the present invention in any way.
Claims (10)
1. a kind of spent fuel dry-type storage horizontal type device, which is characterized in that including：
Pedestal, bottom are provided with air inlet；
There is the space for accommodating car for spent fuel storage tank, bottom to be fixed on the base, include the inner casing cylinder of steel plate structure for cylinder ontology
With the casing cylinder of steel plate structure, it is filled with concrete between inner casing cylinder and casing cylinder, forms " steel plate-concrete-steel
Plate " sandwich of layers structure, the bottom of cylinder ontology are provided with the air inlet air flow channel being connected to the air inlet, cylinder ontology
Top is provided with air outlet air flow channel；And
Footstock is fixed on the top of cylinder ontology, and air outlet, the air outlet of air outlet and cylinder bodies top are provided on footstock
Air flow channel is connected to.
2. spent fuel dry-type storage horizontal type device according to claim 1, which is characterized in that the inner casing cylinder it is interior
Multiple support ring-plane structures are provided on chamber.
3. spent fuel dry-type storage horizontal type device according to claim 2, which is characterized in that the support ring-plane structure
Include the annular ring flat-plate being fixedly connected with inner casing cylinder, the guiding gusset being fixedly connected with annular ring flat-plate and support supporting plate, annular
The middle part of ring flat-plate is the circular hole for accommodating spentnuclear fuel storage tank, and the ventilation of mutually independent clear is constituted between each annular ring flat-plate
Runner.
4. spent fuel dry-type storage horizontal type device according to claim 3, which is characterized in that the guiding gusset is circle
The triangle or corner angle of arcuation are the structure of rounded corner, and the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 25 °
~40 °, the support supporting plate is arc-shaped, and the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 60 °~120 °,
Preferably, described to be oriented to the triangular structure that gusset is arc-shaped, the folder between circular hole axle center in the middle part of both ends and annular ring flat-plate
Angle is 30 °, and the support supporting plate is arc-shaped, and the angle between circular hole axle center in the middle part of both ends and annular ring flat-plate is 60 °.
5. spent fuel dry-type storage horizontal type device according to claim 1, which is characterized in that the cylinder ontology is just
Polygonized structure, casing cylinder and inner casing cylinder are the regular polygon structure consistent with cylinder ontology, inner casing cylinder and shell
It being welded to connect between cylinder by connecting floor, connection floor is located at the polygon corner angle position of casing cylinder and inner casing cylinder,
Preferably, the casing cylinder and inner casing cylinder be rule octagon structure, connection floor be located at casing cylinder with it is interior
The octagon corner angle position of thimble body.
6. spent fuel dry-type storage horizontal type device according to claim 1, which is characterized in that the casing cylinder and institute
The lower part for stating inner casing cylinder respectively at least offers an air inlet hole, constitutes the air inlet air flow channel of entire cylinder ontology, institute
The top for stating casing cylinder and the inner casing cylinder respectively at least offers an exhaust vent, constitutes the outlet air of entire cylinder ontology
Mouth air flow channel, it is preferable that the exhaust vent front end and the air inlet hole front end maintain a spacing with cylinder ontology leading edge
From the exhaust vent rear end and the air inlet hole rear end are directly penetrated through to cylinder ontology back edge.
7. spent fuel dry-type storage horizontal type device according to claim 1, which is characterized in that the pedestal includes substrate
With the end positioned at substrate both ends, the substrate includes convex substrate and is distributed in the trapezoidal substrate of convex substrate both sides, convex
Substrate and trapezoidal substrate are fixedly connected with the end at both ends respectively, are provided in mirror symmetry between convex substrate and trapezoidal substrate
Double step L-type labyrinth type air intake mouth or the convex substrate and trapezoidal substrate between be provided with separate unit rank L-type labyrinth type air intake
Mouthful.
8. spent fuel dry-type storage horizontal type device according to claim 1, which is characterized in that the footstock includes outlet air
The end plate of mouth substrate and both ends, the air outlet substrate include convex upper substrate and are symmetrically distributed in the L of convex upper substrate both sides
Type lower substrate, L-type lower substrate are located at the lower part of convex upper substrate, convex upper substrate and L-type lower substrate respectively with the end at both ends
It is fixedly connected, forms base under double step L-type labyrinth type air outlet or the convex upper substrate and both sides L-type in mirror symmetry
Plate is fixedly connected with the end at both ends respectively, forms separate unit rank L-type labyrinth type air outlet.
9. spent fuel dry-type storage horizontal type device according to claim 1, which is characterized in that the cylinder ontology also wraps
The door opening cover board and bottom cover being arranged in interior thimble body and casing cylinder both ends are included, the door opening cover board includes left side simple gate and right side
Simple gate takes the design of horizontal drawing double swing doors to realize the opening and closing of door opening cover board.
10. spent fuel dry-type storage horizontal type device according to claim 9, which is characterized in that the left side simple gate packet
It includes left side outer shield cover board and left side internal layer shielding cover board, the left side internal layer shielding cover board is located at prolonging on one side for vertical direction
It stretches protrusion to be arranged in the outside of left side outer shield cover board, the right side simple gate includes right side outer shield cover board and right side internal layer
Shielding cover board, the right side internal layer shielding cover board it is each when right side outer shield cover board is each between be both provided with spacing, left side
The closing line of outer shield cover board and right side outer shield cover board is located at door opening cover board center, left side internal layer shielding cover board and right side
The closing line of internal layer shielding cover board and the closing line mutual dislocation of left side outer shield cover board and right side outer shield cover board are formed
Maze-type structure.
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| CN201810094575.2A CN108335767B (en) | 2018-01-31 | 2018-01-31 | Horizontal device for spent fuel dry storage |
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| CN109243645A (en) * | 2018-09-13 | 2019-01-18 | 中国核动力研究设计院 | A kind of irradiated fuel assembly storage screen work |
| CN109448882A (en) * | 2018-10-17 | 2019-03-08 | 中广核工程有限公司 | Nuclear Power Station's Exhausted Fuels Dry storage concrete silo |
| CN110534218A (en) * | 2019-09-12 | 2019-12-03 | 中广核工程有限公司 | The horizontal storage mould group of spent nuclear fuel in nuclear power plant |
| CN113421686A (en) * | 2021-06-25 | 2021-09-21 | 中国核电工程有限公司 | Movable supporting device for concrete dry-method storage system |
| CN113851241A (en) * | 2021-09-22 | 2021-12-28 | 上海核工程研究设计院有限公司 | Ventilation and radiation protection structure of concrete silo type spent fuel storage device |
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